Patent GB-191422666-A (GB)
Title: Improvements in Apparatus for the Manufacture of Inlaid Linoleum.
Inventor: SCOTT CHARLES HERBERT
IPC: D06N7/00
Filed: 1914-11-17
Granted: 1915-09-30
Abstract: 22,666. Scott, C. H. Nov. 17. Inlaid fabrics.-In a machine for making inlaid linoleum, the tesserµ of each colour are cut and spaced in one section A and transferred to a building-up section comprising dabbers B for deposition on the canvas backing, which is carried on an endless travelling table F composed of steel slats provided with spikes which pass through the canvas and part way through the linoleum. The endless table is carried by wheels or drums C which receive intermittent motion from the main shaft E by means of bevel-gears e, e<1>, shaft d, eccentric D, pawl c, and ratchet c<1>. The tesserµ-cutting section A comprises a punch table a, a punch plate n provided with spaced punch blocks, a die and positioning- plate L co - operating with the punch blocks, and a platen a<1>. A plate M fitting over the punch blocks is supported at the level of the tops of the blocks by springs so as to free them from the linoleum after the punching operation. The die and positioning-plate L is provided with spring-withheld plungers in the matrices, whereby the tesserµ are ejected by the dabber B when it is transferred to the building-up section of the machine. The punch table a is raised and lowered to punch out tesserµ, by cams P carried on the main shaft E and secondary shaft p, and the lowering of the table is ensured bv a lever and link motion a<4> operated by cams a<5> on the shafts E, p. Tapered pins 0 on the punch table engage corresponding holes in the plates n, M, L to ensure registration. In order to transfer the die plate containing the punchedout tesserµ to the building-up section of the machine, it is provided with a carriage R sliding on runners r. A rack r<1> on the carriage R is engaged by a toothed wheel r<2>, which is rotated alternately in opposite directions by a quadrant r<4> reciprocated by lever and link motion r<5> operated by a cam r<6> on the main shaft E. The dabbers B are operated to depress the plungers of the die plate and eject the tesserm on to the backing by a lever and link motion b operated by a cam b<1> on the shaft d. Just prior to the operation of the dabbers B, a lever and link motion o<1> operated by a cam o<2> on the shaft d raises register pins o, similar in shape and disposition to the pins 0, to engage the holes in the plate L to ensure registration of the pattern. The linoleum K is fed between the punch and die plates by a gripper T, which travels on the runners r and is traversed between the plates by chains S running over wheels s, s<1>, which receive reversible rotation by suitable gearing from the spindle of the wheel r<2>. The gripper comprises two fixed plates t, t<1> carried by side plates t<2>. Pins t<4> on a plate t<3> are urged upwardly through apertures in the plate t, to grip the linoleum when feeding forwards, by a spring, and are held out of action during the return movement bv toggle-links t<5>, which are straightened bv striking against a suitably-placed pin. A catch t<8> on the punch table engages a. lever t<7> when the punch table descends after operation, and thereby throws the toggle-links t<5> over their dead-centre, allowing the spring to cause the pins t<4> to grip the linoleum in readiness for feeding. A doctor U on the gripper travels over the plate M during the feed motion to remove debris, and a doctor u performs a similar function as the die plate L passes over it. Lubricating and cleaning brushes W may also be provided.